Why don't interested reviewers take a screenshot of the ad profile of the escort they intend to book and when they see them include the link to screenshot uploaded to a picture host site in the review?
This easy to do thing would revolutionize reviews, anyone then looking at the live ad profile, 5 minutes, 5 weeks, 5 months or 5 years time can instantly see is it the same person and do the stats match.
Escorts could op out just as they can elect for non graphic reviews but those that opted in would be on a far higher pedestal then those that opted out.
Thumbs are useful but problem I see is that many profile main pics change all the time but thumb stays the same so you don't know if the reviewer is referring to the main profile pics or the thumb but a screenshot link would solve that and give instant clarity to possible customers.
Surely worth a go and its the best solution to this age old problem and would make the dishonest profiles have to stick to original person they portray and if they keep changing to different people it will fast become clear on various review links if done as the norm.